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(Continued from page 18)
Kelvin) and in the autumn of their years, while blue and blue-white stars are hot (over 10,000 K) and young, in the heyday of youth.
• Top tips for using ordinary binoculars for stargazing
• Do stars shine in color?
• Astronomers believe both red and blue supergiant stars blow up into supernova explosions, though at one time it was thought that only red supergiants did so. Look for Rigel, Orion's blue supergiant star, at the foot of Orion tonight!
• What is the safe distance between us and an exploding star?
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